/*************************************************************************
 *
 *  $RCSfile: asynceventnotifier.hxx,v $
 *
 *  $Revision: 1.6 $
 *
 *  last change: $Author: tra $ $Date: 2002-11-26 09:21:59 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/

#ifndef _ASYNCEVENTNOTIFIER_HXX_
#define _ASYNCEVENTNOTIFIER_HXX_

//------------------------------------------------------------------------
// includes
//------------------------------------------------------------------------

#ifndef _OSL_MUTEX_HXX_
#include <osl/mutex.hxx>
#endif

#ifndef _OSL_CONDITN_HXX_
#include <osl/conditn.hxx>
#endif

#ifndef _CPPUHELPER_INTERFACECONTAINER_H_
#include <cppuhelper/interfacecontainer.h>
#endif

#include <windows.h>

#include <list>
#include <utility>

#ifndef _EVENTNOTIFICATION_HXX_
#include "eventnotification.hxx"
#endif

//---------------------------------------------
//
//---------------------------------------------

class CAsyncEventNotifier
{
public:
    CAsyncEventNotifier(cppu::OBroadcastHelper& rBroadcastHelper);
    ~CAsyncEventNotifier();

    bool SAL_CALL startup(bool bCreateSuspended = true);
    void SAL_CALL shutdown();

    // notifications may be added the
    // the event queue but will only
    // be notified to the clients after
    // resume was called
    void suspend();

    // resume notifying events
    void resume();

    // this class is responsible for the memory management of
    // the CEventNotification instance
    void SAL_CALL notifyEvent(CEventNotification* EventNotification);

private:
    size_t              SAL_CALL getEventListSize();
    void                SAL_CALL resetNotifyEvent();
    CEventNotification* SAL_CALL getNextEventRecord();
    void                SAL_CALL removeNextEventRecord();

    void SAL_CALL run( );

    static unsigned int WINAPI ThreadProc(LPVOID pParam);

private:
    std::list<CEventNotification*>  m_EventList;
    HANDLE                          m_hThread;
    bool                            m_bRun;
    unsigned                        m_ThreadId;
    ::cppu::OBroadcastHelper&       m_rBroadcastHelper;
    HANDLE                          m_hEvents[2];
    HANDLE&                         m_NotifyEvent;
    HANDLE&                         m_ResumeNotifying;
    osl::Mutex                      m_Mutex;

// prevent copy and assignment
private:
    CAsyncEventNotifier( const CAsyncEventNotifier& );
    CAsyncEventNotifier& operator=( const CAsyncEventNotifier& );
};

#endif